Junio C Hamano <gits...@pobox.com> writes:
> Thomas Ackermann <th.ac...@arcor.de> writes:
>
>> Signed-off-by: Thomas Ackermann <th.ac...@arcor.de>
>> ---
>> Documentation/glossary-content.txt | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/Documentation/glossary-content.txt
>> b/Documentation/glossary-content.txt
>> index 7c15bc0..ddf2f66 100644
>> --- a/Documentation/glossary-content.txt
>> +++ b/Documentation/glossary-content.txt
>> @@ -149,6 +149,9 @@ to point at the new commit.
>> [[def_git_archive]]Git archive::
>> Synonym for <<def_repository,repository>> (for arch people).
>>
>> +[[def_gitfile]]gitfile::
>> + A `.git` file which points to a `$GIT_DIR` (used for Git submodules).
>> +
>
> It is more like 'used by' ;-) People are free to write their
> Porcelain system that uses this mechanism.
The series merged at e2e2def (Merge branch 'lh/git-file', 2008-05-05)
added a mention of this to repository-layout and the readers can see
how it is interpreted by Git, but I doubt that anything explains why
you may want to use it in the documentation.
How about saying something like this here in the glossary:
A plain file `.git` at the root of a working tree that
points at the directory that is the real repository.
And then as a separate patch, in gitrepository-layout.txt (eek---see
the other thread), we can do something like this:
Documentation/gitrepository-layout.txt | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/Documentation/gitrepository-layout.txt
b/Documentation/gitrepository-layout.txt
index 9f62886..473c6a0 100644
--- a/Documentation/gitrepository-layout.txt
+++ b/Documentation/gitrepository-layout.txt
@@ -12,12 +12,24 @@ $GIT_DIR/*
DESCRIPTION
-----------
-You may find these things in your git repository (`.git`
-directory for a repository associated with your working tree, or
-`<project>.git` directory for a public 'bare' repository. It is
-also possible to have a working tree where `.git` is a plain
-ASCII file containing `gitdir: <path>`, i.e. the path to the
-real git repository).
+A Git repository comes in two different flavours:
+
+ * a `.git` directory at the root of the working tree;
+
+ * a `<project>.git` directory that is a 'bare' repository
+ (i.e. without its own working tree), that is typically used for
+ exchanging histories with others by pushing into it and fetching
+ from it.
+
+*Note*: Also you can have a plain text file `.git` at the root of
+your working tree, containing `gitdir: <path>` to point at the real
+directory that has the repository. This mechanism is often used for
+a working tree of a submodule checkout, to allow you in the
+containing superproject to `git checkout` a branch that does not
+have the submodule. The `checkout` has to remove the entire
+submodule working tree, without losing the submodule repository.
+
+These things may exist in a Git repository.
objects::
Object store associated with this repository. Usually
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